diff --git a/gun.js b/gun.js
index 6767381f..e0f8a49e 100644
--- a/gun.js
+++ b/gun.js
@@ -765,11 +765,11 @@
 				if(!this.on){ return }
 				var id = text_rand(9);
 				if(cb){ 
-					var to = this.on(id, cb, as);
+					var to = this.on(id, cb, as), lack = (this.gun._.opt.lack || 9000);
 					to.err = setTimeout(function(){
 						to.next({err: "Error: No ACK received yet."});
 						to.off();
-					}, 1000 * 9); // TODO: Make configurable!!!
+					}, lack < 1000 ? 1000 : lack);
 				}
 				return id;
 			}